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Post by alexkirtley on Jan 29, 2019 2:32:51 GMT
I've been planning one of these for a long time, always wanted a Stella 12 string, could never afford one so may as well make one. I'll try to list some planned specs, though some may be make it up as I go along 26 1/2" Scale Length 1 7/8" Nut width Ladder Braces W/ Tailpiece Mahogany Back/Sides Spruce Top Mahogany Neck Slotted Headstock 16 1/8" Lower Bout (Was going for 16" but the mold worked out slightly oversize, might narrow it a bit) I made the Plans using images of old stellas as a reference, some measurements made from scaled up measurements from the computer, others just drawn to how I thought looked right The Last couple days I've been making the mold, this mold worked out a lot better than my first, very sturdy, quite happy with it. The Back and sides and neck are taken from old mahogany window frames and window ledges, I spent a few months working helping out around a glazing workshop a while ago, and I used to go skip diving a lot, one day a set of mahogany window frames came in that had been torn out on a job, good solid mahogany with good grain orientation which meant I managed to get the back and sides pretty near perfectly quarter sawn, the back is 3 piece as the window ledge wasn't quite wide enough for a 2 piece back. those cuts made when my bandsaw worked, it's in storage currently, when it gets moved when we move house in about a month I need to try and fix the motor, or buy another one, smaller and more mobile maybe. Anyway, here is where I'm up to so far, hopefully tomorrow or the following day I'll be able to get the sides bent, I'm just doing things as and when I can afford to buy bits and bobs, once the sides are in, I'll try and get some neck/tail block, kerfins,center strip and brace wood
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davewhite
Luthier / Guitar Maker
Luthier
Aemulor et ambitiosior
Posts: 3,548
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Post by davewhite on Jan 29, 2019 8:37:51 GMT
Interesting project Alex - should be fun. This may or may not be of use to you but here;s a photo documentary of one that I made.
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leoroberts
C.O.G.
Posts: 26,148
My main instrument is: probably needing new strings
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Post by leoroberts on Jan 29, 2019 15:24:55 GMT
Ooh! A new build thread... let the fun commence Best of luck, Alex!
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Post by alexkirtley on Jan 30, 2019 11:28:55 GMT
Got the sides bent, good learning curve, when I cut the sides, I was going to use them on a smaller guitar, so there's a gap at the tail block, that'll be taken up with an end wedge, for the next steps I need to go wood shopping!
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Post by alexkirtley on Feb 1, 2019 0:51:15 GMT
Went through my wood and found a piece of mahogany perfect for end blocks, so got the end block in, the neck block is gluing now. Bought a new table saw today, I'd been after one for a while but it means I can cut out a few other pieces while my bandsaw isn't working, I'm keen to get the back on but at the moment the budgets running thin for the soundboard, kerfing and a block of spruce for the bracing, so I'm going to make some solid kerfing as I've plenty of mahogany as well as mahogany back braces, I'm thinking oak or mahogany for the bridgeplate too, it's not going to be a pin bridge so don't need to worry about the ball ends chewing the plate, this project is all a bit of an experiment
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Post by andyhowell on Feb 7, 2019 8:42:08 GMT
That’s a monster machine with quite a long scale. Was that scale associated with those vintage guitars?
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Post by alexkirtley on Feb 8, 2019 21:22:18 GMT
That’s a monster machine with quite a long scale. Was that scale associated with those vintage guitars? It is going to be a bit of a beast Oscar schmidt originally did 12 strings with a 26 1/2 scale, the only company to do so originally I believe, but it allows for the low tuning yet powerful sound that came from blind Willie mctell and leadbelly and the like
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Post by andy3sheds on Feb 8, 2019 22:47:57 GMT
I was just about to ask about the scale length it struck me as being punishing, Am I right in assuming it will be a 12 fretter?
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Post by alexkirtley on Feb 9, 2019 9:34:49 GMT
I was just about to ask about the scale length it struck me as being punishing, Am I right in assuming it will be a 12 fretter? Yeah 12 fret, though the neck will probably be about as long as a normal 14 fret given the scale length
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Post by alexkirtley on Feb 10, 2019 0:54:41 GMT
A bit farther forward. Mahogany back braces cut, radiused and rough shaped, the sides have also been given a radius on the back side, I made some mahogany kerfing though a slight error has left the kerfing quite thin in spots, so this one might have an un-bound back, there is the option to remove the kerfing with a chisel and re-apply but that may not be worth it and cause damage to the sides, opinions welcome but un-bound back may be the best option (or very narrow binding), if luck is on my side I might get the back on tomorrow
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davewhite
Luthier / Guitar Maker
Luthier
Aemulor et ambitiosior
Posts: 3,548
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Post by davewhite on Feb 10, 2019 8:31:29 GMT
Alex,
Do you mean that the back lining is not tall enough or too thin? If it's thin your binding is only the same depth as the sides and you only remove side material to fit the bindings so you should be OK. Height wise with 6mm binding and a 2mm or so back there's only 4mm at the top of the binding where the binding will go - your linings look bigger than that in the photo. The lining is mainly there to give something to glue the back on so you should be OK to bind the back.
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Post by alexkirtley on Feb 10, 2019 11:43:11 GMT
Alex, Do you mean that the back lining is not tall enough or too thin? If it's thin your binding is only the same depth as the sides and you only remove side material to fit the bindings so you should be OK. Height wise with 6mm binding and a 2mm or so back there's only 4mm at the top of the binding where the binding will go - your linings look bigger than that in the photo. The lining is mainly there to give something to glue the back on so you should be OK to bind the back. Cheers Dave Not tall enough is what I meant, I think it's mostly ok apart from one section where the lining slipped in the clamp, that may be repairable
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Post by alexkirtley on Feb 10, 2019 11:47:27 GMT
I've got the back gluing on now, I know this isn't an ideal clamping situation but it seems to work and seems to be getting good contact all around the sides, when I get back into my workshop I'll make a go-bar deck, for now, this will do. Now I need to save for a top and bracing
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Post by andyhowell on Feb 11, 2019 10:16:54 GMT
It is going to be a bit of a beast Oscar schmidt originally did 12 strings with a 26 1/2 scale, the only company to do so originally I believe, but it allows for the low tuning yet powerful sound that came from blind Willie mctell and leadbelly and the like That certainly makes sense!
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Post by alexkirtley on Feb 11, 2019 11:31:59 GMT
Back attached and trimmed with the router
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